催化精馏技术在烷基化硫转移中的应用研究  

Reviews on catalytic distillation process for alkylation desulfurization

作　　者：郭晓艳 

机构地区：[1]中国石油大学化学工程学院,山东青岛266555

出　　处：《计算机与应用化学》2014年第1期69-72,共4页Computers and Applied Chemistry

基　　金：中华人民共和国教育部批准的中国石油大学(华东)自主创新科研计划项目(13CX02055A)

摘　　要：为了提供高品质的燃油,进行技术改造是我国炼油企业面临的重要课题。烷基化脱硫技术和催化精馏技术是目前被广泛研究和应用的两大技术。但是将催化精馏技术应用于烷基化硫转移中还是一种比较新的尝试,已经得到了众多研究者的关注。本文以此为出发点,通过分析不同的研究成果,分别从催化精馏设备、催化剂种类及目前应用的工艺3个方面进行综述并给出今后的主要研究方向。催化剂是整个工艺技术中至关重要的部分,文中主要介绍了离子交换树脂催化剂和分子筛催化剂,二者均具有良好的选择性和稳定性,因而被广泛应用。但是催化剂在应用过程中,都需要一定的温度,如何开发低温下应用的新型高效催化剂无疑将是重要的一个研究方向。常用催化剂填装技术主要是拟固定床式和拟填料式2种,进行填装技术的改造开发从而提高催化剂的利用效率和气液传质效率。催化精馏应用于烷基化硫转移由于是一种新的尝试,因而实际的应用工艺案例不多。本文主要研究分析了目前应用的几种工艺,结果表明将催化精馏技术与烷基化脱硫相结合的应用是可行的,不仅如此,该工艺技术在反应转化率和选择性等方面也均表现出优良的性能,其硫转移效率均可达90%以上,且具有良好的应用前景。因此,加强基础实验研究,为设计准确高效的工艺提供依据将是今后一段时间内的主要研究内容。In order to provide low sulfur and high quality fuel, developing new technical is the key approach for refineries in China. Alkylation desulfurization process and catalytic distillation process are two main techniques in this field, which are widely researched and applied, Although the catalytic distillation process for alkylation desulfurization is still a new attempt, it has earned much attention, owning to its advantages. This paper reviewed the catalyst and the packing structure of catalytic distillation. The ion exchange resin catalysts and molecular sieve catalyst were mainly introduced. Because their impressed performance on selectivity and stability, they were widely used, The development of catalysts is the key approach to produce new high efficiency catalysts, which can be used in low temperature. It also summarized the new applications about catalytic distillation process for alkylation desulfurization, which demonstrated that this process had a productive performance. Despite of that, many researches also need carry out for process design.

关 键 词：催化精馏 烷基化 脱硫 

分 类 号：TQ015.9[化学工程]